American journal of veterinary research
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Comparative Study
Comparison of caudal epidural anesthesia by use of lidocaine versus a lidocaine-magnesium sulfate combination in cattle.
To compare time of onset and duration of analgesia obtained by epidural administration of a lidocaine-magnesium sulfate (MgSO4) combination versus a lidocaine-distilled water combination in cattle. ⋯ The combination of lidocaine with MgSO4 produced analgesia of longer duration than lidocaine with distilled water. By use of this combination, long-duration obstetric and surgical procedures could commence relatively soon after epidural injection and could be completed without readministration of anesthetic.